There has been considerable interest in stratospheric airships as a cost-effective alternative to earth orbit satellites for sightseeing, aerial photography, communication and carrying weapons, etc. Many countries have plans to develop the airship owing to its greatly expected usage. The suspended curtain plays a vital role in force transmission in stratospheric airships but lacks attention. In this paper, the relationship between the optimal shape of suspended curtain and load conditions was studied through CAE Abaqus and Isight. Firstly, by using secondary development function of Abaqus, parametric FEA models of suspended curtains and envelopes have been established, several parameters were used to describe the shape of suspended curtains. Secondly, parameters of the suspended curtain shape were optimized under different loading conditions by means of the genetic algorithm. Lastly, through the analysis of the results, some conclusions are summarized: The relationship between n1(n2) and nb was found to be linear when the suspended curtain is subjected to vertical load. The stress transfer law of suspended curtain and inflatable membrane structure under the inclined load were also obtained, which are valuable for the structural engineering design of stratospheric airships..

平流层飞艇已经成为人们关注的一种成本效益高的替代品，可用于观光，航拍，通信和携带武器等地球轨道卫星。由于对飞艇的高度期望，许多国家已计划开发该飞艇。悬帘在平流层飞艇的力传递中起着至关重要的作用，但缺乏关注。本文通过CAE Abaqus和Isight研究了悬帘的最佳形状与载荷条件之间的关系。首先，利用Abaqus的二次开发功能，建立了悬垂窗帘和包络的参数有限元分析模型，并用几个参数来描述悬垂窗帘的形状。其次，利用遗传算法，优化了在不同载荷条件下悬垂帘形的参数。最后，通过对结果的分析，总结出以下结论：当悬挂的帘幕受到垂直载荷时，发现1（n 2）和n b是线性的。得出了悬垂幕和充气膜结构在倾斜载荷作用下的应力传递规律，对平流层飞艇的结构工程设计具有重要的参考价值。